Dissolved Organic Carbon Quality and Sorption of Organic Pollutants in the Baltic Sea in Light of Future Climate Change

Ripszám, Mátyás; Paczkowska, Joanna; Figueira, José Rui; Veenaas, Cathrin; Haglund, Peter

doi:10.1021/es504437s

Cited by 47 publications

(30 citation statements)

References 42 publications

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“…Furthermore, 10 larval perch individuals were added to each mesocosm as top consumer. Two variables were altered in a 2 × 2 factorial design: DOC concentration and pollutant addition; and identical mesocosm treatments were exposed to two temperatures (15 and 18°C), as described in detail by Ripszam et al (2015b) . However, temperature treatment was excluded from the study to focus on the role of pollutants and tDOM, both parameters considered to be major climate change-related issues in this region ( Andersson et al, 2015 ).…”

Section: Methodsmentioning

confidence: 99%

“…Pollutants can have various effects on marine ecosystems, such as direct toxicity, persistent negative effects, or bioaccumulation ( Kallenborn et al, 2012 ; Andersson et al, 2015 ). Furthermore, the physicochemical environment can alter the behavior of these substances ( Ripszam et al, 2015a , b ). Moreover, the northern hemisphere is predicted to undergo an increased precipitation regime, leading in turn to higher terrestrial runoff and increased river inflow (up to 15–22%) to the Baltic Sea by the end of the century ( Meier et al, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Organic Pollutants on Bacterial Communities Under Future Climate Change Scenarios

et al. 2018

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Coastal ecosystems are highly dynamic and can be strongly influenced by climate change, anthropogenic activities (e.g., pollution), and a combination of the two pressures. As a result of climate change, the northern hemisphere is predicted to undergo an increased precipitation regime, leading in turn to higher terrestrial runoff and increased river inflow. This increased runoff will transfer terrestrial dissolved organic matter (tDOM) and anthropogenic contaminants to coastal waters. Such changes can directly influence the resident biology, particularly at the base of the food web, and can influence the partitioning of contaminants and thus their potential impact on the food web. Bacteria have been shown to respond to high tDOM concentration and organic pollutants loads, and could represent the entry of some pollutants into coastal food webs. We carried out a mesocosm experiment to determine the effects of: (1) increased tDOM concentration, (2) organic pollutant exposure, and (3) the combined effect of these two factors, on pelagic bacterial communities. This study showed significant responses in bacterial community composition under the three environmental perturbations tested. The addition of tDOM increased bacterial activity and diversity, while the addition of organic pollutants led to an overall reduction of these parameters, particularly under concurrent elevated tDOM concentration. Furthermore, we identified 33 bacterial taxa contributing to the significant differences observed in community composition, as well as 35 bacterial taxa which responded differently to extended exposure to organic pollutants. These findings point to the potential impact of organic pollutants under future climate change conditions on the basal coastal ecosystem, as well as to the potential utility of natural bacterial communities as efficient indicators of environmental disturbance.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Organic Pollutants on Bacterial Communities Under Future Climate Change Scenarios

et al. 2018

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“…In a spiking experiment, we demonstrated that the sorption of structurally diverse pollutants to dissolved organic matter in seawater varies between areas of the Baltic Sea (Fig. 2 ) (Ripszam et al 2015 ). The distribution constant between water and DOC (log K DOC ) for hexachlorobenzene and phenanthrene, representing halogenated aromatic and polycyclic aromatic compounds, respectively, decreased from north to south in the Baltic Sea, while tributyl phosphate, representing compounds with polar functional groups and relatively high water solubility, showed no geographical variation.…”

Section: Effects Of Increased Doc Inflow On Organic Pollutant Sorptiomentioning

confidence: 93%

Projected future climate change and Baltic Sea ecosystem management

Andersson

Meier

Ripszám

et al. 2015

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Climate change is likely to have large effects on the Baltic Sea ecosystem. Simulations indicate 2–4 °C warming and 50–80 % decrease in ice cover by 2100. Precipitation may increase ~30 % in the north, causing increased land runoff of allochthonous organic matter (AOM) and organic pollutants and decreased salinity. Coupled physical–biogeochemical models indicate that, in the south, bottom-water anoxia may spread, reducing cod recruitment and increasing sediment phosphorus release, thus promoting cyanobacterial blooms. In the north, heterotrophic bacteria will be favored by AOM, while phytoplankton production may be reduced. Extra trophic levels in the food web may increase energy losses and consequently reduce fish production. Future management of the Baltic Sea must consider the effects of climate change on the ecosystem dynamics and functions, as well as the effects of anthropogenic nutrient and pollutant load. Monitoring should have a holistic approach, encompassing both autotrophic (phytoplankton) and heterotrophic (e.g., bacterial) processes.Electronic supplementary materialThe online version of this article (doi:10.1007/s13280-015-0654-8) contains supplementary material, which is available to authorized users.

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“…Hurricane Irene alone which occurred in 2011 is estimated to have contributed to 19% of the 2011 annual dissolved organic matter (DOM) exports from a forested catchment in Cecil County, Maryland (Dhillon and Inamdar, 2013). Areas of mean temperatures of about 5 C and 30 C would have 10% and 3% carbon loss respectively with a temperature increase of 1 C. The change in temperature would also influence the bioavailability and toxicity of pollutants since adsorption processes are temperature dependent (Ripszam et al, 2015). The activity of microbial organism is further enhanced as humic substances act as electron donors acceptors during anaerobic respiration (Lau et al, 2015;Lipczynska-Kochany, 2018b).…”

Section: Introductionmentioning

confidence: 99%

Natural organic matter-cations complexation and its impact on water treatment: A critical review

et al. 2019

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a b s t r a c tThe quality and quantity of natural organic matter (NOM) has been observed to evolve which poses challenges to water treatment facilities. Even though NOM may not be toxic itself, its presence in water has aesthetic effects, enhances biological growth in distribution networks, binds with pollutants and controls the bioavailability of trace metals. Even though NOM has heterogeneous functional groups, the predominant ones are the carboxyl and the phenolic groups, which have high affinities for metals depending on the pH. The properties of both the NOM and the trace elements influence the binding kinetics and preferences. Ca 2þ prefers to bind with the carboxylic groups especially at a low pH while Zn 2þ prefers the amine groups though practically, most cations bind to several functions groups. The nature of the chemical environment (neighboring ligands) the ligand finds itself equally influences its preference for a cation. The presence of NOM, cations or a complex of NOM-cations may have significant impact on the efficiency of water processes such as coagulation, adsorption, ion exchange resin and membrane filtration. In coagulation, the complexation between the coagulant salts and NOM helps to remove NOM from solution. This positive influence can further be enhanced by the addition of Ca 2þ . A negative influence is however, observed in lime-softening method as NOM complexes with Ca 2þ . A negative influence is also seen in membrane filtration where divalent cations partially neutralize the carboxyl functional groups of NOM thereby reducing the repulsion effect on NOM and increasing membrane fouling. The formation of disinfection by-products could either be increased or reduced during chlorination, the speciation of products formed is modified with generally the enhancement of haloacetic acid formation observed in presence of metal cations. This current work, presents in details the interactions of cations and NOM in the environment, the preference of cations for each functional group and the possible competition between cations for binding sites, as well as the possible impacts of the presence of cations, NOM, or their complex on water treatment processes.

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Dissolved Organic Carbon Quality and Sorption of Organic Pollutants in the Baltic Sea in Light of Future Climate Change

Cited by 47 publications

References 42 publications

Effects of Organic Pollutants on Bacterial Communities Under Future Climate Change Scenarios

Effects of Organic Pollutants on Bacterial Communities Under Future Climate Change Scenarios

Projected future climate change and Baltic Sea ecosystem management

Natural organic matter-cations complexation and its impact on water treatment: A critical review

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